比值
ratio n.比；比率；比例
rate n.比率；率；价格；费用；速率；速度；费率；进度；不动产税
specific value
短语搭配
比值相等：in the same ratio
英镑对美元的比值定得过高。Sterling was overvalued against the dollar.
美国的出口优势在于美元与其他货币的比值。
The advantage for US exports is the value of the dollar vis-à-vis other currencies.
体质指数就是身高和体重的比值。
The body mass index is a ratio between your height and your weight.
漳南一邺
